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Questions and Answers
What is the term for an elevated area that separates two drainage basins?
What is the term for an elevated area that separates two drainage basins?
The Ganga river system is the largest water basin in the country.
The Ganga river system is the largest water basin in the country.
True
What is the term for the river system that has water in it throughout the year?
What is the term for the river system that has water in it throughout the year?
Perennial River
The river _______________________ rises in Tibet near lake Mansarovar.
The river _______________________ rises in Tibet near lake Mansarovar.
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Match the following rivers with their characteristics:
Match the following rivers with their characteristics:
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Why does the Brahmaputra in its Tibetan part have less silt, despite a longer course?
Why does the Brahmaputra in its Tibetan part have less silt, despite a longer course?
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Sivasmudram waterfall is formed by the river _______________________ .
Sivasmudram waterfall is formed by the river _______________________ .
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What is the name of the river valley project that is located on the river Krishna?
What is the name of the river valley project that is located on the river Krishna?
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What percentage of the total water carried by the Indus River System can India use according to the Indus Water Treaty?
What percentage of the total water carried by the Indus River System can India use according to the Indus Water Treaty?
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The Sundarban delta is the world's largest and fastest growing delta.
The Sundarban delta is the world's largest and fastest growing delta.
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What is one of the economic benefits of lakes?
What is one of the economic benefits of lakes?
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The East flowing rivers of the peninsular plateau drain themselves into the _______________________.
The East flowing rivers of the peninsular plateau drain themselves into the _______________________.
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Match the following characteristics with the type of river:
Match the following characteristics with the type of river:
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The Narmada and Tapi rivers are East flowing rivers.
The Narmada and Tapi rivers are East flowing rivers.
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What is the name of the delta that is home to the Royal Bengal Tiger?
What is the name of the delta that is home to the Royal Bengal Tiger?
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Study Notes
Drainage
- A water divide refers to an elevated area, such as a mountain or upland, which separates two drainage basins.
Drainage Terms
- Drainage describes the river system of an area.
- A drainage basin is the area drained by a single river system.
- A perennial river is a river that has water in it throughout the year.
- A river system consists of a river along with its tributaries.
Indian River Systems
- The Ganga river system is the largest water basin in the country.
- The headstreams of the Ganga are fed by the Gangotri glacier and join the Alkananda at Devaprayag in Uttarakhand.
- The Godavari river is known as Dakshin Ganga due to its length and the area it covers.
- Narmada and Tapi are two peninsular rivers that flow through the trough.
- The river Indus originates in Tibet near Lake Mansarovar.
Drainage Patterns
- There are four main drainage patterns: Dendritic, Trellis, Rectangular, and Radial.
Hydroelectric Power
- Nagarjuna Sagar is a river valley project located on the Krishna river.
- The Sivasmudram waterfall, formed by the Kaveri river, supplies hydroelectric power to Mysore, Bangalore, and the Kolar gold field.
Indo-Tibetan River Systems
- The Brahmaputra carries less silt in its Tibetan part despite a longer course due to the cold and dry climate.
- In India, the Brahmaputra carries a large volume of water and considerable amount of silt due to high rainfall.
International Agreements
- The Indus Water Treaty (1960) allows India to use only 20% of the total water carried by the Indus River System for irrigation in Punjab, Haryana, and southern and western parts of Rajasthan.
Deltas and Ecosystems
- The Sundarban delta is the world's largest and fastest-growing delta, formed by the Sundari trees, and is home to the Royal Bengal Tiger.
Economic Benefits of Lakes
- Lakes regulate the flow of rivers, prevent flooding, and maintain an even flow of water during dry seasons.
- Lakes can be used for developing hydel power, moderating the climate, maintaining aquatic ecosystems, enhancing natural beauty, and promoting tourism and recreation.
Peninsular Rivers
- East-flowing rivers, such as Godavari, Krishna, and Kaveri, drain into the Bay of Bengal and form deltas at the mouth of the river.
- West-flowing rivers, such as Narmada and Tapi, drain into the Arabian Sea and form estuaries at the mouth.
Himalayan and Peninsular Rivers
- Himalayan rivers, such as Indus, Ganga, and Brahmaputra, drain the northern part of India and are perennial in nature.
- Peninsular rivers, such as Godavari, Narmada, and Tapi, drain the southern part of India and are seasonal in nature.
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Description
Learn about drainage terms, including water divides, drainage basins, and river systems, with a focus on Indian river systems.
